You're missing the unit, it's $0.085 per GB, not TB, and that's only for NA/EU traffic. The rest of the world costs up to $0.12/GB so I averaged it to about $0.1/GB, or $100/TB.
They do offer progressively cheaper rates as you use more bandwidth each month, but that doesn't have much impact until you're spending comical amounts already.
Oh, yeah, egg on my face. They only put the unit of measurement at the top, and then talk about TB, so it's a bit deceptive. In retrospect, I was stupid to imagine 0.085/TB made any sense.
I had to double-check because that sounds hilariously wrong. I can't find it anywhere in the pricing. It's at most 0.08/TB.
Am I missing something?